[Python] how to code a python calculator

I want to code a python calculator, but it goes wrong. Okay, I'll show you my code.

from time import sleep
print('Calculator v1.0 (Python 3.6.2)')
ans = input('Hello! Are you here for calculating?(y/n)')
if ans == 'y':
print('OK! LOADING...')
sleep(3)
elif ans == 'n':
print('Oh, you're not going ahead... OK.')
quit()

num1 = input('Input 1st number')
method = input('Input symbol(+,-,*,/):')
num2 = input('Input 2nd number')
ans = num1+method+num2
print('Answer is ', ans)


And my output....

Calculator v1.0 (Python 3.6.2)
Hello! Are you here for calculating?(y/n)y
OK! LOADING...
Input 1st number1
Input symbol(+,-,*,/):+
Input 2nd number1
Answer is 1+1.


I want this output:

Calculator v1.0 (Python 3.6.2)
Hello! Are you here for calculating?(y/n)y
OK! LOADING...
Input 1st number1
Input symbol(+,-,*,/):+
Input 2nd number1
Answer is 2


Somebody HELP!!!!!!!!!

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